package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApLikesBehaviorService;
import com.heima.common.article.HotArticleConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.LikesBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.NewBehaviorDTO;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import com.mongodb.client.result.DeleteResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;
@Service
@Slf4j
public class ApLikesBehaviorServiceImpl implements ApLikesBehaviorService {
    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;
    @Autowired
    MongoTemplate mongoTemplate;
    @Autowired
    RabbitTemplate rabbitTemplate;

    @Override
    public ResponseResult like(LikesBehaviorDTO dto) {
        // 1. 校验参数
            //点赞需要登录
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null){
            CustException.cust(AppHttpCodeEnum.NEED_LOGIN);
        }
        //校验文章id不能为空     使用注解校验
        Long articleId = dto.getArticleId();
//        if (articleId == null){
//            CustException.cust(AppHttpCodeEnum.DATA_NOT_ALLOW,"文章不存在");
//        }
        //校验点赞方式 只能是0 或 1   使用注解校验
        int operation = dto.getOperation().intValue();
//        if(operation!=0 && operation!=1){
//            CustException.cust(AppHttpCodeEnum.PARAM_INVALID,"操作方式错误");
//        }
        // 2. 根据当前登录用户id查询行为实体对象
        Integer loginId = user.getId();
        Integer equipmentId = dto.getEquipmentId();
        ApBehaviorEntry apBehaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(loginId, equipmentId);
        // 3. 如果是点赞操作  判断是否已经点过赞
        String entryId = apBehaviorEntry.getId();
        if (operation == 0){
            Query query = Query.query(Criteria.where("entryId").is(entryId).and("articleId").is(articleId));
            ApLikesBehavior queryResult = mongoTemplate.findOne(query, ApLikesBehavior.class);
//            if (queryResult != null){
//                CustException.cust(AppHttpCodeEnum.PARAM_INVALID,"不能重复点赞");
//            }
            // 4. 没有点过赞则 像mongo点赞集合中 添加点赞数据
            ApLikesBehavior apLikesBehavior = new ApLikesBehavior();
            apLikesBehavior.setEntryId(entryId);
            apLikesBehavior.setArticleId(articleId);
            apLikesBehavior.setCreatedTime(new Date());
            mongoTemplate.insert(apLikesBehavior);
        }
        // 5. 如果是取消点赞操作  在mongo点赞集合中 删除对应点赞数据
        if (operation ==1){
            Query query = Query.query(Criteria.where("entryId").is(entryId).and("articleId").is(articleId));
            DeleteResult removeResult = mongoTemplate.remove(query, ApLikesBehavior.class);
        }

        // 发送点赞行为消息，用于修改文章行为汇总数量 更改文章热度
        NewBehaviorDTO behaviorDTO = new NewBehaviorDTO();
        behaviorDTO.setType(NewBehaviorDTO.BehaviorType.LIKES);
        behaviorDTO.setArticleId(dto.getArticleId());
        behaviorDTO.setAdd(dto.getOperation().intValue() == 0?1:-1);
        rabbitTemplate.convertAndSend(
                HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE,
                behaviorDTO // 如果是json序列化，直接发对象
                // 如果没有设置序列化，发送json字符串消息  JSON.toJSONString(behaviorDTO)
        );
        log.info("成功 发送 点赞行为消息   消息内容:{} ",behaviorDTO);

        return ResponseResult.okResult();
    }
}
